CN210231645U - Pin pulling device for pulling out pin shaft of hydraulic support - Google Patents
Pin pulling device for pulling out pin shaft of hydraulic support Download PDFInfo
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- CN210231645U CN210231645U CN201921017475.6U CN201921017475U CN210231645U CN 210231645 U CN210231645 U CN 210231645U CN 201921017475 U CN201921017475 U CN 201921017475U CN 210231645 U CN210231645 U CN 210231645U
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- 230000007246 mechanism Effects 0.000 claims abstract description 126
- 230000009471 action Effects 0.000 claims abstract description 8
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 7
- 230000008093 supporting effect Effects 0.000 claims description 18
- 239000003245 coal Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 206010017367 Frequent bowel movements Diseases 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a pin pulling device for pulling out a pin shaft of a hydraulic support, which comprises a pin pulling mechanism, wherein the pin pulling mechanism comprises a hydraulic pulling device, the front end surface of the hydraulic pulling device corresponds to the pin shaft end surface of the hydraulic support during use, the pin shaft end surface is provided with at least more than one screw hole, one end of a pull rod is in threaded fit connection with the screw hole of the pin shaft end surface, the other end of the pull rod is connected on the hydraulic pulling device, and the hydraulic pulling device pulls the pull rod under the action of hydraulic oil so as to pull out the pin shaft; the bottom of the hydraulic pulling device is provided with a movable rack, a first slide rail mechanism and a second slide rail mechanism which are used for moving the hydraulic pulling device from front to back and from left to right are arranged in the movable rack, a pushing mechanism of the inclined lifting hydraulic pulling device is arranged in the movable rack, a lifting mechanism of the vertical lifting hydraulic pulling device is arranged in the movable rack, and a rotating mechanism used for rotating the hydraulic pulling device is arranged in the movable rack. Can quick assembly disassembly, realize dismantling the automation.
Description
Technical Field
The utility model relates to a technical field of coal development, concretely relates to pull out round pin device for extracting hydraulic support round pin axle.
Background
The hydraulic support is a structure used for controlling the mine pressure of a coal face, and consists of a hydraulic cylinder (upright post and jack), a bearing structural member (top beam, shield beam, base and the like), a pushing device, a control system and other auxiliary devices. The hydraulic support is installed in the emulsion pump station of the tunnel or chamber to supply liquid.
After the pressure emulsion enters the upright post through the control system, the support raises the primary support top plate, the support resistance of the support to the top plate is increased along with the sinking of the top plate, the pressure of the locking liquid in the upright post is limited by the safety valve, and the constant-resistance support is realized. When the support is moved, the vertical column is firstly reduced to enable the support to be unloaded and separated from the top plate, then the jack is moved, the support is moved by taking the conveyor (or an adjacent support and the like) as a fulcrum, and then the conveyor is moved by taking the supported support as the fulcrum. The hydraulic support can also realize various auxiliary actions such as side protection, balance, support adjustment and the like through various jacks, thereby realizing comprehensive mechanization of coal falling, support and transportation of a working face by matching with a coal mining machine and a scraper conveyor.
However, the working environment of the hydraulic support is severe, and in the repair process, a plurality of parts are difficult to disassemble due to corrosion, blockage, deformation and other reasons, so that the maintenance period of the support is prolonged, and the delivery date of products is influenced. The discovery among the hydraulic support dismouting process, the connection of hydraulic support key part relies on the round pin axle to articulate, and the round pin axle often leaves the clearance when connecting, and the frequent motion of spare part makes round pin axle atress great, and wearing and tearing are more serious simultaneously, consequently, round pin axle type part often causes the part to be difficult to take out because of reasons such as wearing and tearing deformation, corrosion blockage, and the time waste that the dismantlement caused is longer, has seriously influenced the efficiency of hydraulic support maintenance and equipment, and then has influenced production efficiency.
SUMMERY OF THE UTILITY MODEL
The aforesaid that exists to prior art is not enough, the utility model discloses a how solve round pin axle type part and often cause the problem that the part is difficult to take out because of reasons such as wearing and tearing deformation, corrosion blockage.
The technical scheme adopted by the invention is as follows:
the pin pulling device for pulling out the pin shaft of the hydraulic support comprises a pin pulling mechanism, wherein the pin pulling mechanism comprises a hydraulic pulling device, the front end face of the hydraulic pulling device corresponds to the end face of the pin shaft of the hydraulic support when in use, the end face of the pin shaft is provided with at least more than one screw hole, one end of a pull rod is in threaded fit connection with the screw hole on the end face of the pin shaft, the other end of the pull rod is connected to the hydraulic pulling device, and the hydraulic pulling device pulls the pull rod under the action of hydraulic oil so as to pull out the pin shaft;
a movable rack is arranged at the bottom of the hydraulic pulling device, and a first slide rail mechanism and a second slide rail mechanism which are used for moving the hydraulic pulling device back and forth and left and right are arranged in the movable rack, so that the hydraulic pulling device can be adjusted in four directions of moving back and forth and left and right; a pushing mechanism for obliquely lifting the hydraulic pulling device is arranged in the movable rack, so that the hydraulic pulling device is adjusted in two directions along the oblique height direction; a lifting mechanism for vertically lifting the hydraulic pulling device is arranged in the movable rack, so that the hydraulic pulling device is adjusted in two directions along the vertical height direction; and a rotating mechanism for rotating the hydraulic pulling device is arranged in the movable rack, so that the hydraulic pulling device moves towards the left and right angles and is adjusted in two directions.
According to the invention, the hydraulic pulling device can move in left, right, front, back, up and down directions and left and right angles through the first sliding rail mechanism, the second sliding rail mechanism, the pushing mechanism, the lifting mechanism and the rotating mechanism, and meanwhile, the inclination of the hydraulic pulling device can be adjusted, so that the hydraulic pulling device can be adjusted in ten directions, and the hydraulic pulling device can be better overlapped with the end surface of the pin shaft.
The hydraulic support is characterized in that at least one screw hole is formed in the end face of the pin shaft in advance through drilling and tapping, the pull rod and the hydraulic pulling device are staggered through pushing of the hydraulic pulling device, the pull rod drives the pin shaft to move, the pin shaft is taken out of the pin hole of the hydraulic support, the pin shaft of the hydraulic support is convenient to disassemble and assemble and disassemble, disassembly automation can be realized, the working efficiency is improved, manpower and material resources are saved, and the cost is saved.
Further, hydraulic pressure pulling device includes cavity hydraulic jack, cavity hydraulic jack's preceding terminal surface is corresponding with hydraulic support round pin axle head face, the pull rod sets up inside the cavity hydraulic jack, the spacing lid of cavity hydraulic jack's rear end face fixedly connected with, just spacing lid with a pull rod end connection shaping, another tip of pull rod with the screw connection shaping, under the hydraulic oil effect, spacing lid drives the pull rod pulling is provided with the round pin axle of screw for hydraulic support's round pin axle hole is kept away from to the round pin axle.
The pull rod drives the pin shaft to move in a hollow hydraulic jack mode, and the limit cover seals the hollow hydraulic jack.
Further, cavity hydraulic jack includes external cylinder body and internal cylinder body, the external cylinder body is formed by connecting spacing lid for coaxial annular overcoat and endotheca, internal cylinder body is coaxial with the external cylinder body, the rear portion of internal cylinder body is located between the overcoat and the endotheca of external cylinder body, just the internal cylinder body follows under hydraulic control the overcoat slides between the endotheca, the front portion of internal cylinder body with the coincidence of round pin axle head face, the pull rod sets up the inside of internal cylinder body makes pull rod pulling round pin axle tip outwards moves.
When the hollow hydraulic jack pushes, the front part of the inner cylinder body is fixedly connected with the pin shaft, the outer cylinder body is pushed to move outwards under hydraulic control, the pull rod is fixed on the end face of the limiting cover, and the limiting cover covers the tail part of the outer cylinder body, so that when the outer cylinder body moves outwards, the pull rod is pulled to move outwards, the end part of the pin shaft is pulled to move outwards, and the pin shaft is pulled out.
Furthermore, the pushing mechanism comprises a limiting screw which is positioned at the top end of the lifting mechanism and can move up and down along the vertical direction, the top end of the lifting mechanism is hinged with the central point of the second slide rail mechanism to form a fulcrum, and the limiting screw can abut against the bottom, far away from the fulcrum, of the second slide rail mechanism, so that the limiting screw, the fulcrum and the second slide rail mechanism form a lever capable of adjusting the hollow hydraulic jack to obliquely lift.
The lever is formed by the limit screw, the fulcrum and the second slide rail mechanism, the up-and-down moving distance of the limit screw is adjusted according to the lever principle, when the limit screw moves upwards, the end part of the second slide rail mechanism close to the limit screw moves upwards, the fulcrum is taken as a rotating point, and the end part of the second slide rail mechanism far away from the limit screw moves downwards, so that the second slide rail mechanism is inclined downwards in whole, and further the falling of the hollow hydraulic jack, namely the head lowering action of the hollow hydraulic jack is realized; when the limiting screw moves downwards, the end part, close to the limiting screw, of the second sliding rail mechanism moves downwards, the fulcrum is taken as a rotating point, the end part, far away from the limiting screw, of the second sliding rail mechanism moves upwards, the second sliding rail mechanism is enabled to incline upwards, and therefore the hollow hydraulic jack is enabled to face upwards, namely the hollow hydraulic jack faces upwards.
Further, the pushing mechanism further comprises an adjusting screw, the end portion, located on the same plane with the fulcrum, of the adjusting screw is rotatably connected with the second sliding rail mechanism, the other end portion of the adjusting screw is rotatably connected with the side wall of the lifting mechanism, and the adjusting screw is arranged in an inclined mode.
The adjusting screw is arranged to limit the limiting screw, and when the limiting screw finely adjusts the second sliding rail mechanism, the adjusting screw can control the up-and-down floating of the end of the second sliding rail mechanism, so that the second sliding rail mechanism is small in gradient, and the hollow hydraulic jack can be prevented from sliding out of the second sliding rail mechanism.
Furthermore, the first slide rail mechanism and the second slide rail mechanism are both provided with limiting hooks, the limiting hooks of the first slide rail mechanism are hooked on the second slide rail mechanism, and the limiting hooks of the second slide rail mechanism are hooked on the lifting mechanism.
The limiting hook of the first slide rail mechanism and the limiting hook of the second slide rail mechanism are used for limiting the front and back of the first slide rail mechanism and the left and right movement of the second slide rail mechanism, and therefore fine adjustment of the first slide rail mechanism and the second slide rail mechanism is achieved.
Furthermore, first slide rail mechanism is including fixing the first pulley support of cavity hydraulic jack both sides, first pulley support below is provided with sliding connection's first slide rail, both sides are connected with around first pulley support below and hang and detain first spacing hook on the first slide rail.
The first pulley support is arranged to support the hollow hydraulic jack, the first sliding rail is connected with the first pulley support in a sliding mode, the sliding position of the hollow hydraulic jack is limited, meanwhile, the first limiting hooks on the front side and the rear side of the first pulley support are fixed on the first sliding rail to be finely adjusted, and fine adjustment of the power head in the front and rear direction is achieved.
Further, second slide rail mechanism is including fixing the second pulley support of first slide rail bottom both sides, second pulley support below is provided with sliding connection's second slide rail, the first slide rail below left and right sides is connected with the second limit hook of couple on the second slide rail.
The second pulley support is arranged to support the first sliding rail, and meanwhile, the second limiting hook hooks connected with the left side and the right side of the first sliding rail are connected to the second sliding rail, so that fine adjustment of the first sliding rail is achieved, and fine adjustment of the power head in the left and right directions is achieved.
Further, elevating system includes the pneumatic cylinder, the pneumatic cylinder overcoat has the axle sleeve, the axle sleeve top is provided with the backup pad, the backup pad is kept away from the anterior tip of back cylinder body supplies the spacing screw passes, the backup pad middle part with the corresponding position of second slide rail is articulated, the axle sleeve outer wall with adjusting screw is articulated.
The shaft sleeve is used for preventing the hydraulic cylinder from being collided, the supporting plate is used for supporting the second sliding rail, meanwhile, the middle part of the supporting plate is hinged with the corresponding part of the second sliding rail, the outer wall of the shaft sleeve is hinged with the adjusting screw rod, the matching of the fulcrum and the adjusting screw rod is realized, and the limiting of the adjusting screw rod on the supporting plate is realized.
Furthermore, the rotating mechanism is a slewing bearing, and the slewing bearing is fixedly connected with the outer wall of the shaft sleeve. The rotation of the shaft sleeve is realized by adopting a slewing bearing, namely the rotation of the central axis of the hollow hydraulic jack is realized.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses a screw of beating in advance on the round pin axle head face is connected with the screw through the pull rod of pulling pin mechanism, utilizes cavity hydraulic jack's top to push away, stimulates the pull rod, and under the pulling force of pull rod, the round pin axle is extracted along with the pull rod from hydraulic support, has improved work efficiency promptly, has reduced operator's intensity of labour again, has still avoided destroying round pin axle structure spare body and has caused the maintenance cost, has practiced thrift the cost.
2. The utility model discloses a set up the spacing screw in the backup pad, and the contained angle between second slide rail and the backup pad is 30-75, make the backup pad, form a firm triangular supports between spacing screw and the second slide rail, the supporting effect is better, it is more firm, and simultaneously, set up the slope and connect second slide rail and axle sleeve and be the adjusting screw that the slope set up, effectively reduce the wearing and tearing between backup pad and the second slide rail, the life of backup pad and second slide rail has been increased, the steadiness is better, it is automatic to have got to dismantle, high working efficiency, manpower and materials are saved, the beneficial effect of cost of enterprises is saved.
3. The utility model discloses a cavity hydraulic jack ten to the regulation is realized to first slide rail mechanism, second slide rail mechanism, pushing mechanism, elevating system and slewing mechanism, guarantees the coincidence of the pin hole on cavity hydraulic jack's the anterior and the hydraulic support of interior cylinder body, simultaneously for terminal surface aligns with round pin axle head face before the interior cylinder body, is connected through the screw of pull rod with round pin axle head face, realizes pulling out the round pin axle fast.
Drawings
Fig. 1 is a right side view of the pin pulling device for pulling out the pin shaft of the hydraulic support of the present invention.
Fig. 2 is a front view of the pin pulling device for pulling out the pin shaft of the hydraulic support of the present invention.
Fig. 3 is a sectional view of the pin drawing device for drawing the pin shaft of the hydraulic bracket in fig. 1.
In the figure: the hydraulic lifting jack comprises a hollow hydraulic jack 1, a limiting cover 2, a first sliding rail 3, a second sliding rail 4, a second limiting hook 5, a first pulley support 6, a first limiting hook 7, a second pulley support 8, a support plate 9, a fulcrum 10, a shaft sleeve 11, a rotary bearing 12, a hydraulic cylinder 13, an inner cylinder body 14, an outer cylinder body 15, an outer sleeve 151, an inner sleeve 152, a pull rod 16, a limiting screw 17 and an adjusting screw 18.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
In this embodiment: referring to fig. 1-3, the pin pulling device for pulling out the pin shaft of the hydraulic support comprises a pin pulling mechanism, the pin pulling mechanism comprises a hydraulic pulling device, when in use, the front end surface of the hydraulic pulling device corresponds to the end surface of the pin shaft of the hydraulic support, the end surface of the pin shaft is provided with at least more than one screw hole, one end of a pull rod 16 is in threaded fit connection with the screw hole on the end surface of the pin shaft, the other end of the pull rod 16 is connected to the hydraulic pulling device, and the hydraulic pulling device pulls the pull rod 16 under the action of hydraulic oil, so as to pull out the pin;
a movable rack is arranged at the bottom of the hydraulic pulling device, and a first slide rail mechanism and a second slide rail mechanism which are used for moving the hydraulic pulling device back and forth and left and right are arranged in the movable rack, so that the hydraulic pulling device can be adjusted in four directions of front, back, left and right; a pushing mechanism of the inclined lifting hydraulic pulling device is arranged in the movable frame, so that the hydraulic pulling device can be adjusted in two directions along the inclined height direction; a lifting mechanism of a vertical lifting hydraulic pulling device is arranged in the movable rack, so that the hydraulic pulling device can be adjusted in two directions along the vertical height direction; a rotating mechanism for rotating the hydraulic pulling device is arranged in the movable rack, so that the hydraulic pulling device can move towards the left angle and the right angle and can be adjusted in two directions.
At least more than one screw hole is drilled and tapped on the end face of the pin shaft in advance, the pull rod 16 and the hollow hydraulic jack 1 are staggered through pushing of the hollow hydraulic jack 1, the pull rod 16 drives the pin shaft to move, the pin shaft is taken out from a pin hole of the hydraulic support, the pin shaft of the hydraulic support is convenient to disassemble and assemble and disassemble, the disassembly can be quickly and automatically realized, the working efficiency is improved, manpower and material resources are saved, and the cost is saved.
The hydraulic pressure pulling device comprises a hollow hydraulic jack 1, the front end face of the hollow hydraulic jack 1 corresponds to the end face of the pin shaft of the hydraulic support, a pull rod 16 is arranged inside the hollow hydraulic jack 1, the rear end face of the hollow hydraulic jack 1 is fixedly connected with a limiting cover 2, the limiting cover 2 is connected with one end of the pull rod 16 in a forming mode, the other end of the pull rod 16 is connected with the screw hole in a forming mode, under the action of hydraulic oil, the limiting cover 2 drives the pin shaft of the pull rod 16 to pull, the pin shaft is arranged on the pin shaft, and the pin shaft hole of the hydraulic support.
The mode of the hollow hydraulic jack 1 is adopted to realize that the pull rod 16 drives the pin shaft to move, and the limit cover 2 realizes sealing of the hollow hydraulic jack 16.
The hollow hydraulic jack 1 comprises an outer cylinder body 15 and an inner cylinder body 14, wherein the outer cylinder body 15 is formed by connecting an annular outer sleeve 151 and an inner sleeve 152 which are coaxial, the inner cylinder body 14 is coaxial with the outer cylinder body 15, the rear part of the inner cylinder body 14 is positioned between the outer sleeve 151 and the inner sleeve 152 of the outer cylinder body 15, the inner cylinder body 14 slides along the outer sleeve 151 and the inner sleeve 152 under hydraulic control, the front part of the inner cylinder body 14 is overlapped with the end surface of a pin shaft, and a pull rod 16 is arranged in the inner cylinder body 14, so that the end part of the pin shaft is pulled by the pull rod 16 to move outwards.
When the hollow hydraulic jack 1 pushes, the front part of the inner cylinder body 14 is fixedly connected with the pin shaft, under the hydraulic control, the outer cylinder body 15 is pushed to move outwards through hydraulic pressure, the pull rod 16 is fixed on the end surface of the limiting cover 2, and the limiting cover 2 covers the tail part of the outer cylinder body 15, so that when the outer cylinder body 15 moves outwards, the pull rod 16 is pulled to move outwards, the end part of the pin shaft is pulled to move outwards, and the pin shaft is pulled out.
Through first slide rail mechanism, second slide rail mechanism, pushing mechanism, elevating system and slewing mechanism realize cavity hydraulic jack 1 about, the removal of upper and lower and rotatory, simultaneously, can also adjust the gradient of cavity hydraulic jack 1, realize cavity hydraulic jack 1 five-way regulation, guarantee that the anterior part of the interior cylinder body 14 of cavity hydraulic jack 1 coincides with the pin hole on the hydraulic support, simultaneously, make the preceding terminal surface of interior cylinder body 14 align with round pin axle head face, be connected with the screw of round pin axle head face through pull rod 16, realize pulling out the round pin axle fast.
The pushing mechanism comprises a limiting screw 17 which is located at the top end of the lifting mechanism and can move up and down along the vertical direction, the top end of the lifting mechanism is hinged with the central point of the second slide rail mechanism to form a fulcrum 10, and the limiting screw 17 can abut against the bottom, far away from the fulcrum 10, of the second slide rail mechanism, so that the limiting screw 17, the fulcrum 10 and the second slide rail mechanism form a lever capable of adjusting the inclined lifting of the hollow hydraulic jack 1.
A lever is formed by the limit screw 17, the fulcrum 10 and the second slide rail mechanism, the up-and-down movement distance of the limit screw 17 is adjusted according to the lever principle, when the limit screw 17 moves upwards, the end part of the second slide rail mechanism close to the limit screw 17 moves upwards, the end part of the second slide rail mechanism far away from the limit screw 17 moves downwards by taking the fulcrum 10 as a rotation point, so that the second slide rail mechanism is inclined downwards in whole, and the hollow hydraulic jack 1 is further descended, namely the hollow hydraulic jack 1 moves towards the lower end; when the limiting screw 17 moves downwards, the end part of the second slide rail mechanism close to the limiting screw 17 moves downwards, the pivot 10 is taken as a rotating point, and the end part of the second slide rail mechanism far away from the limiting screw 17 moves upwards, so that the second slide rail mechanism is wholly inclined upwards, and the hollow hydraulic jack 1 is tilted upwards, namely the hollow hydraulic jack 1 tilts upwards.
The pushing mechanism further comprises an adjusting screw 18, the end part of the adjusting screw 18, which is located on the same plane with the fulcrum 10, is rotatably connected with the second sliding rail mechanism, the other end part of the adjusting screw 18 is rotatably connected with the side wall of the lifting mechanism, and the adjusting screw 18 is obliquely arranged.
The adjusting screw 18 is arranged to limit the limit screw 17, and when the limit screw 17 finely adjusts the second slide rail mechanism, the adjusting screw 18 can control the up-and-down floating of the end of the second slide rail mechanism, so that the second slide rail mechanism has small gradient, and the hollow hydraulic jack 1 can be prevented from sliding out of the second slide rail mechanism.
The first slide rail mechanism and the second slide rail mechanism are both provided with limiting hooks, the limiting hooks of the first slide rail mechanism are hung on the second slide rail mechanism, and the limiting hooks of the second slide rail mechanism are hung on the lifting mechanism.
First slide rail mechanism is including fixing first pulley support 6 in cavity hydraulic jack 1 both sides, and first pulley support 6 below is provided with sliding connection's first slide rail 3, and both sides are connected with around first pulley support 6 below and hang first spacing hook 7 of detaining on first slide rail 3.
Set up first pulley bracket 6 and be used for supporting cavity hydraulic jack 1, and first slide rail 3 and first pulley bracket 6 sliding connection inject the gliding position of cavity hydraulic jack 1, simultaneously, utilize first spacing hook 7 of first pulley bracket 6 front and back both sides to fix and finely tune on first slide rail 3, realize the fine setting around the unit head.
The second slide rail mechanism comprises second pulley supports 8 fixed on two sides of the bottom of the first slide rail 3, a second slide rail 4 in sliding connection is arranged below the second pulley supports 8, and second limiting hooks 5 hooked on the second slide rail 4 are connected to the left side and the right side of the bottom of the first slide rail 3.
Set up second pulley support 8 and be used for supporting first slide rail 3, simultaneously, utilize the spacing hook 5 couples of the second that the first slide rail 3 left and right sides is connected to connect on second slide rail 4, realize finely tuning first slide rail 3, realize the fine setting about the unit head promptly.
The lifting mechanism comprises a hydraulic cylinder 13, a shaft sleeve 11 is sleeved outside the hydraulic cylinder 13, a supporting plate 9 is arranged at the top of the shaft sleeve 11, a limiting screw 17 penetrates through the end part of the supporting plate 9 far away from the front part of the rear cylinder body, the middle part of the supporting plate 9 is hinged with the corresponding part of the second slide rail 4, and the outer wall of the shaft sleeve 11 is hinged with an adjusting screw 18.
The rotating mechanism is a rotary bearing 12, and the rotary bearing 12 is fixedly connected with the outer wall of the shaft sleeve 11. The rotation of the shaft sleeve 11, namely the rotation of the central axis of the hollow hydraulic jack 1, is realized by adopting the slewing bearing 12.
Through the limiting screw 17 that sets up in backup pad 9, and the contained angle between second slide rail 4 and the backup pad 9 is 30-75, make backup pad 9, form a firm triangular support between limiting screw 17 and the second slide rail 4, the supporting effect is better, it is more firm, and simultaneously, set up the slope and connect second slide rail 4 and axle sleeve 11 and be the adjusting screw 18 that the slope set up, effectively reduce the wearing and tearing between backup pad 9 and the second slide rail 4, backup pad 9 and second slide rail 4's life has been increased, the steadiness is better, it is automatic to have made the dismantlement, high work efficiency, manpower and material resources are saved, the beneficial effect of cost of enterprises is saved.
Meanwhile, the shaft sleeve 11 is used for preventing the hydraulic cylinder 13 from being collided, the supporting plate 9 is used for supporting the second slide rail 4, meanwhile, the middle part of the supporting plate 9 is hinged with the corresponding part of the second slide rail 4, the outer wall of the shaft sleeve 11 is hinged with the adjusting screw rod 18, the matching of the pivot 10 and the adjusting screw rod 18 is realized, and the limiting of the adjusting screw rod 18 on the supporting plate 9 is realized.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.
Claims (10)
1. The pin pulling device is used for pulling out the pin shaft of the hydraulic support and is characterized by comprising a pin pulling mechanism, wherein the pin pulling mechanism comprises a hydraulic pulling device, the front end surface of the hydraulic pulling device corresponds to the end surface of the pin shaft of the hydraulic support when in use, the end surface of the pin shaft is provided with at least more than one screw hole, one end of a pull rod is in threaded fit connection with the screw hole on the end surface of the pin shaft, the other end of the pull rod is connected to the hydraulic pulling device, and the hydraulic pulling device pulls the pull rod under the action of hydraulic oil so as to pull out the;
a movable rack is arranged at the bottom of the hydraulic pulling device, and a first slide rail mechanism for the hydraulic pulling device to move back and forth and a second slide rail mechanism for the hydraulic pulling device to move left and right are arranged in the movable rack, so that the hydraulic pulling device is adjusted in four directions of front, back, left and right; a pushing mechanism for obliquely lifting the hydraulic pulling device is arranged in the movable rack, so that the hydraulic pulling device is adjusted in two directions along the oblique height direction; a lifting mechanism for vertically lifting the hydraulic pulling device is arranged in the movable rack, so that the hydraulic pulling device is adjusted in two directions along the vertical height direction; and a rotating mechanism for rotating the hydraulic pulling device is arranged in the movable rack, so that the hydraulic pulling device moves towards the left and right angles and is adjusted in two directions.
2. The pin pulling device for pulling out the pin roll of the hydraulic support according to claim 1, wherein the hydraulic pulling device comprises a hollow hydraulic jack, the front end surface of the hollow hydraulic jack corresponds to the end surface of the pin roll of the hydraulic support, the pull rod is arranged inside the hollow hydraulic jack, the rear end surface of the hollow hydraulic jack is fixedly connected with a limiting cover, the limiting cover is connected with one end of the pull rod to be formed, the other end of the pull rod is connected with the screw hole to be formed, and under the action of hydraulic oil, the limiting cover drives the pull rod to pull the pin roll provided with the screw hole, so that the pin roll is far away from the pin roll hole of the hydraulic support.
3. The pin pulling device for pulling out the pin shaft of the hydraulic support according to claim 2, wherein the hollow hydraulic jack comprises an outer cylinder body and an inner cylinder body, the outer cylinder body is formed by connecting an annular outer sleeve and an annular inner sleeve which are coaxial with each other through a limiting cover, the inner cylinder body is coaxial with the outer cylinder body, the rear portion of the inner cylinder body is located between the outer sleeve and the inner sleeve of the outer cylinder body, the inner cylinder body slides along the space between the outer sleeve and the inner sleeve under hydraulic control, the front portion of the inner cylinder body is overlapped with the end face of the pin shaft, and the pull rod is arranged inside the inner cylinder body so that the end portion of the pin shaft is pulled by the pull rod to move outwards.
4. The pin pulling device for pulling out the pin roll of the hydraulic support according to claim 2, wherein the pushing mechanism comprises a limit screw which is located at the top end of the lifting mechanism and can move up and down along a vertical direction, the top end of the lifting mechanism is hinged with the central point of the second slide rail mechanism to form a fulcrum, and the limit screw can abut against the bottom of the second slide rail mechanism, which is far away from the fulcrum, so that the limit screw, the fulcrum and the second slide rail mechanism form a lever which can adjust the hollow hydraulic jack to tilt and lift.
5. The pin pulling device for pulling out the pin roll of the hydraulic support according to claim 4, wherein the pushing mechanism further comprises an adjusting screw, the end of the adjusting screw, which is in the same plane with the fulcrum, is rotatably connected with the second slide rail mechanism, the other end of the adjusting screw is rotatably connected with the side wall of the lifting mechanism, and the adjusting screw is arranged in an inclined manner.
6. The pin pulling device for pulling out the pin roll of the hydraulic support according to any one of claims 1 to 5, wherein the first slide rail mechanism and the second slide rail mechanism are both provided with a limit hook, the limit hook of the first slide rail mechanism is hooked on the second slide rail mechanism, and the limit hook of the second slide rail mechanism is hooked on the lifting mechanism.
7. The pin pulling device for pulling out the pin shaft of the hydraulic support according to claim 6, wherein the first sliding rail mechanism comprises first pulley supports fixed on two sides of the hollow hydraulic jack, a first sliding rail in sliding connection is arranged below the first pulley supports, and first limiting hooks fastened on the first sliding rail are connected to the front side and the rear side below the first pulley supports.
8. The pin pulling device for pulling out the pin roll of the hydraulic support according to claim 7, wherein the second slide rail mechanism comprises second pulley supports fixed on two sides of the bottom of the first slide rail, a second slide rail in sliding connection is arranged below the second pulley supports, and second limiting hooks hooked on the second slide rail are connected to the left and right sides below the first slide rail.
9. The pin pulling device for pulling out the pin shaft of the hydraulic support according to claim 8, wherein the lifting mechanism comprises a hydraulic cylinder, a shaft sleeve is sleeved outside the hydraulic cylinder, a supporting plate is arranged at the top of the shaft sleeve, the end part of the supporting plate far away from the front part of the rear cylinder body is used for the limiting screw to pass through, the middle part of the supporting plate is hinged with the corresponding part of the second slide rail, and the outer wall of the shaft sleeve is hinged with the adjusting screw rod.
10. The pin pulling device for pulling out the pin shaft of the hydraulic support according to claim 9, wherein the rotating mechanism is a rotary bearing, and the rotary bearing is fixedly connected with the outer wall of the shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017475.6U CN210231645U (en) | 2019-07-02 | 2019-07-02 | Pin pulling device for pulling out pin shaft of hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921017475.6U CN210231645U (en) | 2019-07-02 | 2019-07-02 | Pin pulling device for pulling out pin shaft of hydraulic support |
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| CN210231645U true CN210231645U (en) | 2020-04-03 |
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| CN201921017475.6U Expired - Fee Related CN210231645U (en) | 2019-07-02 | 2019-07-02 | Pin pulling device for pulling out pin shaft of hydraulic support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589712A (en) * | 2020-11-26 | 2021-04-02 | 陕西时盛科邦建设工程有限公司 | Leak-proof antifriction pin shaft dismounting mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589712A (en) * | 2020-11-26 | 2021-04-02 | 陕西时盛科邦建设工程有限公司 | Leak-proof antifriction pin shaft dismounting mechanism |
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